Metal reinforce for concrete.



G. F. DODGE.

METAL REINFORCE FOR CONCRETE.

AIPLIOATION FILED JULY a, 1908.

Patented J an. 12, 1909.

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G. P. DODGE.

METAL REINPOROE FOR CONCRETE;

APPLICATION FILED JULY 8,1908.

Patented Jan. 12, 1909.

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G. F. DODGE.

METAL REINFORGE FOR CONCRETE.

APPLICATION FILED JULY 8, 1908 909,850.

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METAL :enmronon FOR CONCRETE.

No. 909,860. Specification of Application filed July 8,

tached to the bars and adapted to engage and lock with the concrete at a distance from the bars, whereby the cracking of the material and its separation from the bars is pre: vented. The .main bar, has in some cases, been formed integral with a section of expanded metal forming the supplemental member of the reinforce, but more generally this bar has been of rolled metal, either flat, angle or T iron made separate from and secured to the supplemental member or web by riveting. In some cases also the main bar has been provided with a longitudinal groove or channel, in which some portion 01* the supplemental member has been inserted and secured by pinching together the sides of the grooves or channel in such manner as to impin e upon or partially inclose the supplementa member. My invention is an improvement upon these constructions insevei'al important respects, as it provides for a, large range of adjustment in the matter of strength with very little change in size, and permits the making of the bar from mild or medium steel. Its nature is fully disclosed below and will be fully understood from the accompanying drawings, in which Figure 1 is an elevation of a preferred form of the invention; Fig. 2 is a section on line 22 of Fig. 1; Figs. 3 and 4 are perspectives of a portion of the bar forming a part of 'the main member, showing. its opposite sides; Fig. 5 is a view similar to Fig. l of a modified construction; Fig. (3 is a. section on line (36 of Fig. 5; Fig. 7 is a. perspective of the bar, and Fig. 8 is a like view showing one manner of using the reinforce in the construction of columns. Figs. 9 and 10 are pers )ective views of dillerei'it constructions o the ba rs comprising the princi- I. pulnieinber of the reinforce. h1g5. 11 and [2 show modifications.

In Figs. 1 to 1, iii-elusive, the bars coinpos-' i Lettem Patent. Patented Jan.--12 i909.

1903. Serial 1:10. 442,611.

f ing the principal member are shown at 11. I Such bars are essentially alike, and made lll continuous lengths and each is substantially fiat and preferably flanged on one side as at 12, and also provided on the same, side with transverse ribs or ridges 13, or other projecwith the concrete. Upon the other side face, each bar is provided at proper intervals with gaging the supplemental member 15 whether the same be in the form of stirrups, or expanded metal. The lugs are. preferably elliptical in form, or in any event are rounded onthc side engaging the supplemental members.

together with the sides carrying the lugs face to face, to form the principal member of the -the lugs of the bars entered in its loops or meshes, as is plainly shown in Fig. 1. The two bars 11 may be secured together in any suitable way, but I prefer to eli'ect this by means of strong clips 16 passing around the outside of the bars, asshown in Figs. 1 and 2, as by that means of fastening the two bars are made to form practically a unit, and'are not weakened in any way y cuttin away the metal or forming rivet or bolt ho es.

The bars are desirably formed with the web engaging lugs alon both edges as shown, as thereby a supplemental member may be attached at either edge or both edges. he united bars thus provided with i supplemental members-at both edges are specially adapted to be used as a reinforce in slab wdrk.

In the modified construction shown in F i 5 and subsequent figures, is the provision on the abutting faces of the two rigid member bars 11 of the longitudinal ridges 17, the lusts 14 for locking the supplemental the ridges, as plainly seen at Fig. 7. The bars of this construction are fastened to gulhcr byrlips 11) in the manner described in connection with the main figures, and

plemcntai members at either edge or both edges, and shown as so secured in Figs. 5 and 6. The bar of this modified construcc eate. as shown in Figs. 9 and 10.

tions intended to establish mechanical bonds lugs 14, intended to serve as a means for eii-' Two of these bars 11 are placed i'rivention, and the sup leinental memberpr 'web is secured therein y being placed w th members 15 being formed above and below they are also adapted to be secured to sup- 1 6,

tion is shown as provided with bonds 15 for mechanical engagement with the con-1 in vertical position as in column Work, and having a clip 18 uniting them to e band 19 surrounding the column, the clip being secured upon the lugs 1-2 or" the bars. 'lhese bars are fastened together in pairs by clips smilsr to that employed in the other figures; Two or more of the principal memhere may be arranged for compression relatex-cement with suppieziiental members attached to the two edges to preserve intervals and provide for mutual action, as tor ex ample iii columns and struts, bee Figs. 11 end. 3.2. it the strength of the supplemental member should not be as great as desired, that member may be siipplemented by stirrups 2U secui ed. between the bars and upon "the lugs thereof, as seen. at Fig. l.

'lfhe invention permits the combining in one reinforce of bars clifiering in thickness,

sothat the principal member may be made,

to have any desired strength, and by keeping the bass in stock in a variety of sizes, they may be assembled as needed for the place of use.

I claim:

1., The combination with the body of concrete, of a metal reinforce therefor, coiisisteoeeso 'ous bars arranged side by side with their faces abutting, scicl faces having projecting lugs for engaging e supplemental membei', and said supplemental member en aged by said lugs, said bees being. siiitebl jestened together so as to confine the smpg'ilementel member on the lugs 8. Tile combination with at body of concrete, of a metal reinforce therefor, snob reinforce consisting of s main. rigid. member comgaosecl of two parallel separate continuone base iii-ranged side by side with their faces abutting, scicl feces having rojecting lugs for engaging a supgalements member, and said supplemental member engaged by said lugs, said. bars being fastened together by clips so as to confine the supplemental member on the lugs 4. Tlbe metal reinforce for concrete, con

sisting oi two main rigid bars oi. rolled metal arranged side by side with their faces abutting, said faces saving a lui'elity of projecting lugs for engaging e supplemental member at separate points in combination with e supplemental member engages by said lugs,

5. The metal reinforce for concrete where in are combined two pcmllel and sepez'ete rigid bars forming the main menace: oi the reinfogce, said bars beiiig ecraiiged side by side having a plurality of lugs on their abutting faces whereby to engage a supple niestel member at sepai-ated' points, and means Ior securing said bars together.

GGRDON F. DODGE. Witnesses H. M. Momma, WILLIAM A. (Emcee, 

